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David Simpson

David Simpson served as President of IRIS from 1991 to 2014. In retirement, he keeps track of EarthScope activities online and remains delighted and impressed with the quality, variety, and excitement of the materials and services that continue to be provided. He is still based in the DC area and spends as much time as … Continued

Tim Ahern

I served as the Director of Data Services for IRIS for 31 years until I retired in 2019. I remain active in the International Federation of Digital Seismograph Networks (FDSN) international standards organization. I serve on the Steering and Data Committees of Earthscope-Oceans. I am also promoting STEM activities by working with the local school … Continued